package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.EmployeeService;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.GetMapping;

import java.time.LocalDateTime;
import java.util.List;

@Slf4j
@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // 对前端穿过来的密码进行MD5加密处理
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        System.out.println("--------:" + password);
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /*
    *
    *   新增员工
    * */
    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
       //对象属性拷贝 前提是属性名字要一样
        BeanUtils.copyProperties(employeeDTO,employee);

        //设置账号的状态
        employee.setStatus(StatusConstant.ENABLE);
        //设置账号的默认密码，并且MD5加密
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

        //设置创建时间和更新时间  已经通过AOP，统一设置
      //  employee.setCreateTime(LocalDateTime.now());
      //  employee.setUpdateTime(LocalDateTime.now());


        //设置当前记录的创建人和更新人,利用同个线程ID，设置ID代码在解析JWT的时候
     //  employee.setCreateUser(BaseContext.getCurrentId());
      // employee.setUpdateUser(BaseContext.getCurrentId());

         //保存到数据库
        employeeMapper.insert(employee);
    }

    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        //开始分页查询
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());

        Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);

        Long total = page.getTotal();
        List<Employee> records = page.getResult();

       return new PageResult(total,records);
    }

    //启用或者禁用员工账号
    @Override
    public void startOrstop(Integer status, Long id) {
        Employee employee = new Employee();
        employee.setStatus(status);
        employee.setId(id);
        employeeMapper.update(employee);
    }

     //根据ID来查询员工
    @Override
    public Employee getById(Long id) {
        Employee employee = employeeMapper.getById(id);
        //将密码设置成不可看的
        employee.setPassword("**********");
        return  employee;
    }


    //编辑员工信息
    public void update(EmployeeDTO employeeDTO)
    {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);

       // employee.setUpdateTime(LocalDateTime.now());
       // employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.update(employee);
    }

}
